Indicating and registering device.



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No. 861,895, I PATENTEDJULY so, 1907.

y B. U. POTTER. INDIGATING AND REGISTERING DEVICE.

APPLICATION FILED 00T- B. '1906.

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PATENTED JULY 30, 1907.

B. U. POTTER. INDIGATING AND REGISTERING DEVICE.

APPLICATION FILED 00T.B. 1906.

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BERNARD U. POTTER, OF HOLYQKE, MASSACHUSETTS.

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i No. 861,895. Specification of Letters Patent. Patented July 30, 1907.

Application filed October 8, 1906. Serial lilo: 338,023.

To all whom it may concern: Be it known that I, BERNARD U. Po'rrnn, a citizen of the United States of America, and a residentoi Holyoke, in the county of Hampden and State of Massacliusc'tts, have-inventedcertain new and useiul Improvements in Indicating and Registering Devices, of which the following is a full, clear, and exact description.

This invention relates to an indicating or registering "device for showingthe extents of movements of a reciprocatorypart in foot lengths or other units of mensuration; and thedcvice in which this invention resides-has been primarily designed to show the aggregate linear extent of a succession of strokes of a piston or pistons of a steam pump.

As well known, the pistons of steam pumps in usual action have strokesof slightly varied lengths, and the quantity of'water delivered through the pump at each operation varies according to the lengths of the piston strokes.

' B yfbeing able to determine the aggregate of the lengths of all of thestrokos of a piston in a pump, or of the two'pistons, in a double acting punip,-fitted in a pun p cylinder or cylinders of given size-it is only a matterof. arithmetical computation to ascertain the cubic contents of the liquid pumped during the time in which such strokes are made. v

I The invention consists in the combination with a shaft and a drum loosely rotatable thereon, having a .tape or like flexible connection in winding engagement therearound, adapted to be connected with a piston .rod or other movable-part, and serving, by the movement of such rod in one direction, to impart a rotational movement in one direction to the drum, of a clutch operable between the drum and shaft to engage J the-shaft on the rotary motion of the drum in one direction and to release'such engagement on the reversed rotary movement of the drum, means for imparting a rev ersed rotary motion to the drum after each tapeimparted motionf hereof, and a shaft-rotationonch-r 1 connected with and operated bythe said shaft.

The invention furthermore consists in an extension or addition of means in the device above characterized for' enlarging the scope of its availability; and also consists in various combinations and arrangements of parts as hereinafter described and set forth in the claims.

in the accompanying drawings, an example of a Q construction of the stroke measuring device produced in accordance with the present invention is illustrated.

Figurel .is a central sectional view taken through the device on the axis of the shaft thereof. Fig. 2 is a lace view, with parts in section, of one oi thc duplicated clutch devices comprised in the device. Fig. 3

is a sectional elevation transversely of the axis oi the Fig. 4 is an elevation oi the end ol' the device at which the meter, or shait-rotz-ition-indicator and register is providcd;'and Fig. '5 is a side elevation of a steam pump showing the position of the piston stroke indicating deviceor regist r oporably combined therewith. g

Referring to Fig.5 in which the steam pump shown is doublcacting,--liaving one piston rod A working between opposite cylinders ll ll,--C represents the indicating device mounted on a stand above one of the cylinders and near the-end thereof; and (i represents a thin flexible steel tape having a winding engagement about one of the drums comprised in the new device and having a connection with a lug 1) Carrie by stem d which is aiiixcd to, and moves horizontally backward and forward in unison with, and in the same extents as, the piston red A. 7

Now his to be understood that the present new de vice is to have the shaft thereof fully or partially rotated in one direction corresponding to the extent of movement to'the rightward of the piston rod ,A, said shalt in the new device being again fully or partially rotated in the same direction on the reverse stroke of the piston rod; and these rotations of the above mentioned shalt are indicated by and accumulatively registered'in the meter D with which the shaft is operativcly engaged or connected.

Having briefly indicated the mode oi application. of the device in relation to the pump, as well as the object thereof, the construction oi this pistou-stroko-indicating device will be now particularly described.

Referring to Shoot 1 oi the drawings, E represents a irame or supportpreferably made in the form of a cylindrical casing, constructed with feet I) b, and having centrally and horizontally extended thercthrough and journaled for rotation therein a shaft F. Mounted on this shalt, loosely, are two drums G- and-H havipg on the adjacent sides thereof oppositely lacing bevel gear whoolsd and K between and in mesh with which is a bevel gear Wheel, or pinion, L rotatable about the i'ixcd in the screw plug a which in substance forms the portion of the casing E. -Thisarrangement oi gearing is such that when the rotary motion is imparted to the drum G in on o (lllti'lll in, the drum .lfi will be oppositely rotated, and vice worse. The loosely mountcddrums G and II have ailixed on the sides therewith loosely and con,

device, and as indicated by section line 3-3, Fig. 1.

haying outside of said shoulder a curved shoe or; and a axis constituted by the hooded stud f which is supported spring in said socket reacts outwardly against said shoe, as indicated ate in Fig. 2. y

"Pawls (1 shown in the present instance as in the form v of roller", are provided in the convergent spaces between the ratchet-like edges h of the shoftcar1'ic l clutch element and the internal surface oi the flange g of the drum-carried clutch-case or element M. lie manifest, when a given drum turned so that the clutch-case shown in Fig. 2 is moved in a. proper direction, the roller pawls forced by the spring-pressed shoes, or held .to action, between the flanges g and the'intchet edges of the shaft curried clement M, cause (I locking of the drum to the shaft instantly the drum commences to rotate, and a corresponding positive rotational movement of the slim; t.

The drum G is made with a spiral peripheral groove T in which the steel tape a winds and nnw'inde, one end of this tape being screwed or otherwise secured to the The (i in is mode with a sidewise opening cham- -ber x iv'ithin which is located a coiled spring Q, one end. of-wliic-h is connected to tlnefese, no indicated at t, while the other end, as indicated at is connected to the hub oi the drum H. I

The two sets of clutches co'cipplied that when the drum C is rotated by the unwinding tape properly drown'by =the piston moving, for instance, to the rightward, the clutch ap'fiurtenan't to the tape-engaged dmni G becomes locked to thc shaft F, t;lie clutch appurtenant .to the qthei'i'lrunoH, rotated in the reverse direction, moving ifeefoi the shaft; andthe spring is so connected between the drum H and the caoinges tobe wonnd'up at this time.

Now assuming the pump piston rod A- hole moved. as far to the rightward as it may be impelled, the on winding' of the tape end rotation of drum G and shaft F becomes thereby terminoted; an lon the reversed stroke (lithe pistonrod the reacting coil spring rotates the other drum H, as fast as the winding of tape will permit such motion, and the clutch appurtenant to the drum H now becoming automatically locked to the shel cn-uses'e continuation of the rotation of the shaft irile direction as previously imparted thereto, .n'exfient some or more or less than before, I as to whether the ioitwaird strolzea of the 33! red is exactly the some or slightly more orlese was m previous, rightward, stroke thereof.

Theinetc 1) shown as located at one end of the clicing E is of no uncommon or novel construction; for any of the know! 1d prcciirztble kinda of rog'stering ie utilized in the s nation shown. This -lor primary Shaft it, the

' "l es into & corre" 'emen tionei'l sin-.1. 2i pointer u :evolubly .ll dial u, the

moving ovmthe which by the pointer in unzlo foot of each sin:

rod. A in (new 50 of the drum G is ust one in cirolzn nine inches inone direction the polnlor ."lll be moved tln' c quart ers Way around; and ii the row roml motion of the piston rod nine inches. tho pointer will be moved three quarters further around in the some direction, and successive comcomes;

plete rotationsoi the pointer in consequence of foot strokes of the piston rod will advance the number Wheels in the register i1 so that at any time a reading may readily be taken of tlio work, in foot strokes performed by the pump and the quantity of Water delivered through the pump may be easily and. accurately computed. i

The shai't F of the new device is shown as having an :ixjal passage 1) theretln'ongh with radial ducts w at different portions along its length where lubrication is required or desirable.

The paoaage 1) opens to one end of the shaft which is externally screw threaded and at which is screw engaged a disk is having a screw threaded hole centrally thereof and part 'way therothrough. This disk has a' radial passage 3/ leading to an opening in the end por- 'tion .01 the shaft-for the introduction of a. quantity of lubricant, and a screw plug z-closes the outer end of the radial possnge y.

I The part is preferably made in the form of a diskas thereby the shaft is not unbalanced. A considerable latitude of change from the precise forms or constructions of the parts, as shown, may be made without departing from the present invention or sacrificing any of the advantages thereof; the device may-be utilized, while c'o'mpriing means comprehended hereby, fondeterm lni-ng the individual and aggregated lengths of piston strokes in one direction only; and the device is susceptible of uses in manner employed in reference to the flexible means of winding connection with the drum G, it is almost needless to state that this termis intercliahgeobly employed with cord, cable, chain or wire.

I claim: 1. In'icomhinaflon, n shaft, a drum loosely rotatable thereon, :1 tape in winding engagement around said drum, adopted to lie connected with n piston rod, and serving by the movement of such ted in one direction to impart a rotational movement in one direction to the drum, a clutch opemble between the drum and shaft to engage the shaft on the rotary motion of the drum in one direction, and releasing such engagement on the revemed rotary movement of She drum n second drum also loose on 'the shntt having a bevel genr- Wheel thereon, a bevel gezu' wheel fixed'onthe' llrst named drum. n bevel gear wheel between.

und in mesh with the genre on both drums. a spring for rotationally moving the second drum, and n ahafto'omtlonindicator connected with and operated by the shaft.

2. In comlflnation, n. snilfr, iidrnm loosely rotatable -lhei eofi, a tune in winding engagement around said drum, .adii'pted to be com; steel with :1 piston rod, nnd serving by' the movement of such rod in one direction to import a rotational movement in one direction to the drum, a. clutch comprising anui -ilnr flanged case fixed on the drum, an element, fixed on the shaft, located within said flanged case, having a rotclieit like edge-portion, and having 11 shoulder r one end of 'uch nor-Lion constructed with a socket, a stem oping in said socket, having. outside at said ouldei' a "ed shoe, and n spring-in sold socket against said shoe. 1|. pawl consisting of a roller in the convergent space between the oak ratchet like edge portion and the internal fiangewnll, in motion to the drum after each ntroke in one direction o! the pinion, and u slnu't rotation-indicator engaged and opernted by the slinft.

3. in combination, a shaft having a pair ot'arums loosely roiatable thereon, one of sold drums having a tape so by sold shoe, means for importing rev creed rotary K rppfi'd and Atlanta; (-011 with amuilur pm-Hoz'xs, one (3f mm Mums having '3 s pirifl t, fhe'mpvemx ul whlch-is tn peripheral 'gruave. and the other :1 siduwise opeliiiig chnm' mpartingarrow hillnmyvmm "bur; n )wvgll :rr whecl' i ppprrml, for rotation, by the' the first. tdrum. jcumuurwlwols-Qcmrch elements nfi'xxed u' n Ith'o shaft having their 40- for ibiwurting 1r mkmsw'ilhiu said emu-h cnses,-z\nd forrfied with ratchet inn ';1 riwvrsed likg migu pnrtidna rqlh'r pnwls in the qonvergent spaces n hlu hp mush seuhrod To :rud hni'ing winding comictiori withthg spi:

rahygnwyud drum, and adapted, hythu unwindhgg thereof, 45

hot-0d. me M the other rlrrrm having one end conuected {0 the l I 

